1123151355 has 48 divisors (see below), whose sum is σ = 2011010976. Its totient is φ = 579571200.

The previous prime is 1123151347. The next prime is 1123151363. The reversal of 1123151355 is 5531513211.

1123151355 is a `hidden beast` number, since 112 + 31 + 513 + 5 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (1123151347) and next prime (1123151363).

It is not a de Polignac number, because 1123151355 - 2³ = 1123151347 is a prime.

It is a super-2 number, since 2×1123151355² = 2522937932476672050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 170880 + ... + 177330.

It is an arithmetic number, because the mean of its divisors is an integer number (41896062).

Almost surely, 2^1123151355 is an apocalyptic number.

1123151355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1123151355 is a deficient number, since it is larger than the sum of its proper divisors (887859621).

1123151355 is a wasteful number, since it uses less digits than its factorization.

1123151355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6588 (or 6585 counting only the distinct ones).

The product of its digits is 2250, while the sum is 27.

The square root of 1123151355 is about 33513.4503595198. The cubic root of 1123151355 is about 1039.4719197105.

Adding to 1123151355 its reverse (5531513211), we get a palindrome (6654664566).

The spelling of 1123151355 in words is "one billion, one hundred twenty-three million, one hundred fifty-one thousand, three hundred fifty-five".